Electrochemical performance of 2D polyaniline anchored CuS/Graphene nano-active composite as anode material for lithium-ion battery

Shahid Iqbal, Ali Bahadur, Aamer Saeed, Kebin Zhou, Muhammad Shoaib, Muhammad Waqas

Research output: Journal PublicationArticlepeer-review

58 Citations (Scopus)

Abstract

Lithium-ion battery (LIB) is a revolutionary step in the electric energy storage technology for making green environment. In the present communication, a LIB anode material was constructed by using graphene/polyaniline/CuS nanocomposite (GR/PANI/CuS NC) as a high-performance electrode. Initially, pure covellite CuS nanoplates (NPs) of the hexagonal structure were synthesized by hydrothermal route and then GR/PANI/CuS NC was fabricated by in-situ polymerization of aniline in the presence of CuS NPs and graphene nanosheets (GR NSs) as host matrix. GR/PANI/CuS NC-based LIB has shown the superior reversible current capacity of 1255 mAh g−1, a high cycling stability with more than 99% coulombic efficiency over 250 cycles even at a high current density of 5 Ag−1, low volume expansion, and excellent power capabilities. Galvanostatic charge/discharge tests and cyclic voltammetry analysis were used to investigate electrochemical properties. The electrochemical test proves that GR/PANI/CuS NC is promising anode material for LIB. The crystal phases and purity of the GR/PANI/CuS NC were confirmed by X-ray diffraction (XRD). Scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) and X-ray photoelectron spectroscopy (XPS) were employed to examine the morphology, size, chemical composition, and phase structure of the synthesized GR/PANI/CuS NC.

Original languageEnglish
Pages (from-to)16-23
Number of pages8
JournalJournal of Colloid and Interface Science
Volume502
DOIs
Publication statusPublished - 15 Sept 2017
Externally publishedYes

Keywords

  • Anode material
  • Electrochemical performance
  • Graphene/Polyaniline/CuS
  • Lithium-ion battery
  • Nanocomposite

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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